Asteroid General Data

2025 ER₁

General information

Preliminary designation	2025 ER₁
Group	Aten
Absolute magnitude	25.05
Approximate diameter (m)	26
Approximate mass (kg)	3.21·10⁷
Number of observations	79
Arc length (days)	24

Approaches

No approaches found

Orbit initial data

Date of initial data	09/17/2026
M – mean anomaly (degrees)	285.687091
a – orbit major semiaxis (astronomical units)	0.98981700
e – orbit eccentricity	0.26951700
ω – orbit ascending node-perihelion angle (degrees)	59.241332
Ω – longitude of orbit ascending node (degrees)	351.792359
i – orbit inclination to the ecliptic plane (degrees)	9.560878

Orbital evolution

Date	M	a	e	ω	Ω	i	q	P
01/13/1829	350.799964	0.98944437	0.27133687	58.079651	353.434935	9.468222	0.72097164	0.984210
01/21/1858	161.336140	0.98942757	0.27080841	58.276694	353.046370	9.495499	0.72148226	0.984185
01/29/1887	335.324109	0.98928069	0.27074918	58.385269	352.940047	9.491603	0.72143375	0.983966
02/07/1916	151.489968	0.98914255	0.27021266	58.598647	352.559354	9.517982	0.72186371	0.983760
02/14/1945	328.892669	0.98932217	0.27021623	58.705907	352.454432	9.513697	0.72199126	0.984027
02/22/1974	143.286862	0.98958921	0.26979349	58.915010	352.066078	9.546338	0.72260449	0.984426
03/02/2003	315.754869	0.98975584	0.26981782	59.065391	351.951998	9.542793	0.72270207	0.984675
03/09/2032	128.034137	0.98964646	0.26959222	59.138044	351.711032	9.556915	0.72284547	0.984511
03/17/2061	303.534231	0.98949321	0.26935986	59.354894	351.465906	9.565804	0.72296346	0.984283
03/25/2090	119.621932	0.98939418	0.26913085	59.501561	351.266933	9.590494	0.72311768	0.984135
04/03/2119	296.822951	0.98944181	0.26904857	59.639012	350.978121	9.596206	0.72323391	0.984206
04/10/2148	110.960114	0.99000656	0.26916985	59.853789	350.866269	9.593754	0.72352665	0.985049
04/18/2177	279.080283	0.98981949	0.26874375	59.977486	350.475512	9.627561	0.72381169	0.984770

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